L28 full rebuild assembly

[Av8ferg]

It’s really loose. Would probably pop off on a normal drive. I recall it being somewhat tight to remove. Would a high temp sealant be a good idea?


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[S30Driver]

I would say that should work, unless someone else has a better solution.   Don't forget to re-install the important heatshield that protects the pcv hose when you get to that point in assembly.

[Zed Head]

1 hour ago, Av8ferg said:

It’s really loose. Would probably pop off on a normal drive. I recall it being somewhat tight to remove. Would a high temp sealant be a good idea?

Did you try a plastic mallet or a block of wood?  I think that the parts have some taper and it's meant to be a press fit.  Very crude, just get it started and pound it in until it's tight.

I think that it might be described in Monroe's How to Rebuild book.

Did you install the screen/mesh on the inside of the block that covers that hole?

Edited June 4, 2020 by Zed Head
added a the

[Av8ferg]

Yep, new screen and cover installed inside. I even blue thread locked the screws to make sure they never fell
Inside the pan.
I have tried using a mallet but it didn’t seems to make a difference. Maybe I need hit it harder and see what happens. I wanted to make sure they’re wasn’t something I missed before I started smacking away on it.


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[Av8ferg]

I really forgot what a pain I the a$$ putting the manifolds and heat shields on are on these engines. I need some child size hands.
I ran into another problem. The intake manifold lower bolt flange thickness is about double the thickness of the header surface. (One of the shared bolts). This mean when you put the washer on and bolt it down the washer doesn’t even touch the header matting surface. I imagine this isn’t good and would manifest into an exhaust leak. I need a washer that is thicker on one 1/2 of it. Anyone tackled this problem?

Here’s the best pic I could get showing the problem.




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[S30Driver]

What is the height difference of the header flange & intake?   Is it less than the height of the thick stock washers?

[Av8ferg]

I guess I should have researched more before asking.  I knew I couldn't be the first to have this issue. 

1. Make my own 

2. Call Pacesetter 

Looks like another work stoppage!!  AWOP = "Awaiting Parts"  A term used in aviation when you are waiting for parts. 

 

 

[Captain Obvious]

Here's another thread for some input:
https://www.classiczcars.com/forums/topic/62535-thick-manifold-washers-notched-wanted/

 

[Dave WM]

possible the edge of the washer (do they go dome size out so the edges are what touch) will grab the weld?

[Av8ferg]

Thanks Bruce, Just measured it there is 6mm difference, slightly less than 4 pennies thickness for a mental picture.

I’m going to call Pacesetter and see if thy can assist. Second option is to cut some washers and stack them in one side. I don’t have a welder (yet).


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[Captain Obvious]

I don't like the whole "shared hold down" thing between intake and exhaust. It's what we got, but I just wish they hadn't done that.

Hopefully Pacesetter can hook you up.

[Av8ferg]

Problem solved. Nice guys over at Pacesetter. I guess the headers come with these step washers but since I bought mine on CL I didn’t get them. They were $2 each and in their way.


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